Of the three main oxidising gasses, NO2, SO3 and O3, ozone is the only one not producible by pgm catalysis. Why not, and what’s being done about it?
Okay, just out of curiosity, what is pgm catalysis. And what is this thread about? Is there a huge ozone shortage? Its tricky to make because the equilibrium with oxygen lies far to the oxygen side at room temperature. Read: Ozone is energetically unstable.
Well, I’M writing my Congressional representatives right away!
Well, yeah. But I think the problem is getting the ozone up there, not making it?
What do you mean by “main oxidizing gasses?”
The question was mostly rhetorical, but if platinum group metals could be used to catalyse its synthesis the cost of ozone would fall dramatically.
And of course it’s unstable; instabilty is what makes it useful.
Chlorine, an unsafe sterilent for drinking water continues its destruction of stratospheric ozone despite some emission curbs.
Carcinogenic organo-chlorides are produced when chlorine is used for microbial disinfection on food-preparation surfaces; replacing one health hazard with another is essentially what happens in these cases.
Thank you.
Hold on, hold on a second, let’s get some clarification. Are you asking why some water treatment operations still use chlorine instead of ozone? Or are you asking why ozone can’t be reproduced with “pgm catalysts”? Or… what?
I’m with SPOOFE. General Questions is for questions with factual answers.
What is the General Question here?
DrMatrix - GQ Moderator
If sulphuric and nitric acids, mainstays of the chemical industry, were produced today without the aid of catalysis, we’d still have one foot in the dark ages.
Okay, I’m exaggerating slightly, but I thought it odd that ozone is produced today by the very process that led to its discovery, centuries ago.
Called corona- discharge, the process wastes energy on a grand scale, generators themselves are cumbersome, complex and costly and use dangerous high voltages and frequencies.
A catalysed process hasn’t been found yet, but will, presumably, someday.
Am I the only one interested in this?
OZONELOVER: Why the interest in generating large amounts of ozone.?
Replenish the ozone layer, or what?